Are these 100% polyester?

Hello! Yes, these shirts are 100% polyester. Thank you for your question, we hope this helps in your shopping experience.

where are the shirts made?

Vietnam. I have five of the colors and seven shirts altogether. I wear these shirts from June to October. I’m on my second year with them and they are holding up well with proper cleaning and drying. In hot and humid weather they are not stuffy outside, and when you return inside to air conditioning, you cool off immediately.

What sun protection factor (SPF) do these shirts provide?

Hello! This shirt does not provide SPF. I recommend checking out our core performance polo with offer UPF 30. https://www.amazon.com/Callaway-Short-Sleeve-Performance-XX-Large/dp/B00M0COCJQ/ref=sr_1_4_mod_primary_new?crid=1FJFERZVF9BCL&keywords=callaway+polo&qid=1677787122&sbo=RZvfv%2F%2FHxDF%2BO5021pAnSA%3D%3D&sprefix=callaway+polo%2Caps%2C112&sr=8-4Thank you for your question and we hope this helps in your shopping experience!

is the logo on the Calloway golf shirt embroidered?

Yes, and these shirts are FANTASTIC. I own 7 of them in various colors. The logo is on the sleeve and it stands out. additionally, these shirts have slight texture images woven into the design which adds even more quality. I love them and wear them all the time even when not golfing. I wear a 4x size and they are very comfy and fit great.